Feb. 13, 2019
3:12 a.m.
In a recent discussion someone put it that labels should be valid IDN U labels once they are "in the system". Now, when you make a DNS lookup the label you submit is "in the system". When it's on the side of a bus, to use the other extreme, it's not. Now, where do you draw the line for where "the system" starts? I don't think you can include all HTML documents or HTML mail message or any other place a URL can and does exist today.
Who knows? There are standards for URLs, but if you look at three browsers you'll probably find at least four misinterpretations of them. Regards, John Levine, john.levine@standcore.com Standcore LLC